Q.Would It Be Ok To Aerate The Soil With A Knife
Hi, I was told at my garden centre to stick the knife into the soil to aerate the soil, my concern is that it might damage the roots by doing this? Also would it be better to use citrus baby bio fertiliser or a drip feeder for more slow releasing, or either be ok?

Certified GKH Gardening Expert
As far as the soil goes- I don't think I would go with the knife option. You can get soil to loosen up, naturally, buy introducing worms and mulching a little. They will turn the soil, naturally, as they move and make homes.
As far as the fertilizer goes- This will depend on the plant in question. Many plants have different feeding requirements and will needed to fed accordingly.
We can give general feeding information, however:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fertilizer-numbers-npk.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/composting/vermicomposting/benefits-of-garden-worms.htm